Dark mode on iPhone inverts your screen to white text on a dark background, which reduces eye strain in low light and saves battery life on newer models

You can turn on dark mode in two ways: through Settings, where it stays on all the time, or through Control Center, where you can toggle it on and off as needed. The fastest method is Control Center if you only want dark mode sometimes. Settings is better if you want it to turn on automatically at sunset or stay on permanently.

Dark mode works across almost all built-in iPhone apps — Mail, Messages, Safari, Calendar, Notes — and many third-party apps will follow suit if their developers have added support. Some apps, particularly older ones or those designed for specific tasks like photo editing, may not respond to the dark mode setting.

Key Takeaways

  • Control Center is the fastest way to toggle dark mode on or off without opening Settings.
  • Settings lets you schedule dark mode to turn on automatically at sunset and turn off at sunrise.
  • Dark mode reduces battery drain on iPhone 12 and newer models because their screens use less power to display black pixels.
  • Some apps will not switch to dark mode if their developers have not added support, and you will see the light version instead.

Turning on dark mode through Control Center

Open Control Center by swiping down from the top-right corner of your screen (iPhone X and newer) or swiping up from the bottom (iPhone 8 and earlier). Look for the brightness slider — it shows a sun icon on the left and a bright circle on the right.

Press and hold the brightness slider. A menu will expand below it. At the bottom of that menu, you will see a dark circle icon labeled "Dark Mode". Tap it once to turn dark mode on. The screen will invert when ready. Tap it again to turn it off. This method does not change your Settings — it only affects the current session, and dark mode will revert to your Settings preference when you restart your phone.

Turning on dark mode permanently through Settings

Open the Settings app and tap Display & Brightness. You will see three options at the top: Light, Auto, and Dark. Tap Dark to keep dark mode on all the time. Your screen will switch to dark mode right away, and it will stay that way until you change this setting again.

If you want dark mode to turn on and off on a schedule instead, tap Auto. A new option called "Schedule" will appear below. Tap it and choose either Sunset to Sunrise (dark mode turns on when the sun sets in your location and off when it rises) or Custom Schedule (you pick the exact times). Once you set a schedule, dark mode will follow it automatically without you having to do anything.

Why dark mode saves battery on newer iPhones

iPhones with OLED screens — iPhone 12, 13, 14, 15, and newer — use less power to display black pixels than white ones. When dark mode is on, more of your screen shows black, so the phone draws less current from the battery. On older iPhones with LCD screens (iPhone 11 and earlier), dark mode makes no difference to battery life because LCD screens use the same amount of power regardless of what color they display.

The battery savings are real but modest — typically 3 to 5 percent over a full day of heavy use. If you have an older iPhone, you can use dark mode purely for comfort in low light, knowing it will not drain your battery faster.

Apps that may not respond to dark mode

Most Apple apps — Mail, Messages, Safari, Notes, Reminders, Calendar — switched to dark mode years ago. Third-party apps from major developers like Gmail, Slack, and Spotify also support it. However, some apps do not, particularly older ones that have not been updated in years or specialized apps like certain photo editors and design tools.

If an app does not support dark mode, you will see its light interface even when dark mode is on everywhere else. There is no way to force an app to use dark mode if the developer has not built it in. Your only options are to contact the app's developer and request the feature, or use a different app that does support dark mode.

Troubleshooting dark mode problems

If dark mode is on but your screen still looks light, check whether you have turned on Increase Contrast or Smart Invert in Accessibility settings. Both of these override dark mode and can make your screen look wrong. Go to Settings, tap Accessibility, then Display & Text Size, and turn off both Increase Contrast and Smart Invert if they are on.

If dark mode turns off by itself, check your Schedule setting in Display & Brightness. If you set it to Sunset to Sunrise, dark mode will turn off at sunrise even if you manually turned it on. Switch to Dark (permanent) if you want it to stay on all day, or adjust your custom schedule times if you set specific hours.

If a specific app refuses to use dark mode even though other apps do, the app itself does not support it. Check the app's settings first — some apps have their own dark mode toggle separate from the system setting. If the app has no dark mode option, the developer has not added support yet.

Frequently Asked Questions

Does dark mode work on iPad the same way?

Yes. iPad uses the same Display & Brightness settings and Control Center toggle as iPhone. The process is identical, and scheduling works the same way. All iPad models with iPadOS 13 or newer support dark mode.

Can I use dark mode with True Tone or Night Shift?

Yes, they work together. Dark mode inverts your interface colors, True Tone adjusts white balance based on your room's lighting, and Night Shift adds a warm orange tint to reduce blue light. You can have all three on at once, though the combination may look unusual. Most people use either dark mode or Night Shift, not both.

Will dark mode make my iPhone screen last longer?

On OLED screens (iPhone 12 and newer), dark mode reduces power draw and may extend battery life slightly over time. It does not extend the lifespan of the screen itself. OLED screens can develop burn-in if the same bright image stays on for months, but normal use with dark mode will not cause this.

What if I want dark mode on some apps but not others?

You cannot set dark mode per app through Settings. Some individual apps have their own dark mode toggle in their settings, separate from the system dark mode. Check the app's preferences to see if it offers this option. Otherwise, you are limited to turning system dark mode on or off for everything at once.